Don't want to be that guy, but with this expansion especially, I don't think it's that easy to keep an RP quest experience.
There's LOTS of phasing, single player scenarios, and a lot is based upon spending significant amounts of time managing your own personal garrison.
There's also choices at most main outposts where you choose the building the want, and players are phased out accordingly to their choices.
I mean you can try to RP the common areas, but it's going to be a very broken on and off experience.